Trichloroacetic Acid Removal by a Reductive Spherical Cellulose Adsorbent

 

Chemical Research in Chinese Universities Vol.32 No.1 February 2016 2016 Vol. 32 (1): 0-0 [Abstract] ( 20 ) [HTML 1KB] [PDF 2198KB] ( 11 )

A novel spherical cellulose adsorbent with amide and sulphinate groups was used for a first reduction of trichloroacetic acid(TCAA) and a subsequent adsorption of generated species, haloacetic acids. The removal mechanism involved TCAA reduction by sulphinate groups and the adsorption of the haloacetic acids through electrostatic interaction with amide group. Investigation of product formation and subsequent disappearance reveals that the reduction reactions proceed viasequential hydrogenolysis, and transform to acetate ultimately. Adsorption of haloacetic acids was ascertained by low chloride mass balances(89.3%) and carbon mass balances(75.1%) in solution. The pseudo-first-order rate constant for TCAA degradation was (0.93±0.12) h^-1. Batch experiments were conducted to investigate the effect of pH value on the reduction and adsorption process. The results show that the reduction of TCAA by sulphinate groups requires higher pH values while the electrostatic attraction of haloacetic acids by amino group is favorable in more acidic media.

Trichloroacetic Acid Removal by a Reductive Spherical Cellulose Adsorbent

LIN Chunxiang1,3, TIAN Chen1, LIU Yifan1,3, LUO Wei1, ZHU Moshuqi1, SU Qiaoquan1, LIU Minghua1,2,3

1. College of Environment & Resources, Fuzhou 350108, P. R. China; 2. State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China; 3. Key Laboratory of Eco-materials Advanced Technology(Fuzhou University), Fujian Province University, Fuzhou 350108, P. R. China

LIU Minghua     E-mail: mhliu2000@fzu.edu.cn

Cite this article:

LIN Chunxiang,TIAN Chen,LIU Yifan等. Trichloroacetic Acid Removal by a Reductive Spherical Cellulose Adsorbent[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 2016, 32(1): 95-99.

LIN Chunxiang, TIAN Chen, LIU Yifan, LUO Wei, ZHU Moshuqi, SU Qiaoquan, LIU Minghua Trichloroacetic Acid Removal by a Reductive Spherical Cellulose Adsorbent

2016 Vol. 32 (1): 95-99 [Abstract] ( 9 ) [HTML 1KB] [PDF 0KB] ( 12 ) doi: 10.1007/s40242-016-5304-6

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